Latest F-22 upgrade brings ability to jam enemy radars
This year, the US Air Force started fielding the Increment 3.1 upgrade to its Lockheed Martin F-22 Raptor fleet.
The modifications add a synthetic aperture radar (SAR) capability to the fighter's Northrop Grumman APG-77 radar, plus electronic attack, better geo-location capabilities to find enemy radars and the ability to carry eight 113kg (250lb) small diameter bombs (SDBs), for use in pairs against four ground targets.
Introduction of an SAR mode will assist during the manual targeting process, which is an improvement over the previous Increment 2 configuration's use of two 454kg Joint Direct Attack Munition satellite-corrected, inertially guided bombs against individual targets.
http://www.flightglobal.com 
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